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Proceedings Paper

Spectrometric universality and reduction of nonstatistical noises in detectors with regular light collection
Author(s): Sergey V. Naydenov; Vladimir D. Ryzhikov
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Paper Abstract

Intrinsic resolution of the scintillator is one of the most important constituents of the full energy resolution of a detector. Intrinsic resolution contains components preserved at any ionizing radiation energy. A major role is played by the resolution of light collection. This is a component determined by geometric-optical non-uniformities of scintillation energy propagation and collection. In this work, theoretical studies of general light collection features have been carried out. A universal law has been predicted for light collection dispersion in detectors of regular beam dynamics. Such systems include scintillation blocks with mirror reflecting surface and regular geometry in the shape of cylinder, parallelepiped or sphere. An important regular collection feature is weak dependence of its dispersion on the scintillator material or shape. This allows to relate spectrometric efficiency and detection efficiency for any detector of the said type. The theoretically obtained law is confirmed by the available experimental data. The developed theory allows finding new ways to eliminate internal noises affecting the radiation measurements data. Such optimization is a necessary condition for creation of new detectors with improved characteristics.

Paper Details

Date Published: 21 October 2004
PDF: 7 pages
Proc. SPIE 5540, Hard X-Ray and Gamma-Ray Detector Physics VI, (21 October 2004); doi: 10.1117/12.557633
Show Author Affiliations
Sergey V. Naydenov, Institute for Single Crystals (Ukraine)
Vladimir D. Ryzhikov, Institute for Single Crystals (Ukraine)

Published in SPIE Proceedings Vol. 5540:
Hard X-Ray and Gamma-Ray Detector Physics VI
Arnold Burger; Ralph B. James; Larry A. Franks, Editor(s)

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